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All Journal Metta : Jurnal Ilmu Multidisiplin Innovative: Journal Of Social Science Research
Parsaulian, Kevin Sahat
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Analisis Potensi Ocean Thermal Energy Conversion (OTEC) di Wilayah Geografis Laut Barat Sumatera Parsaulian, Kevin Sahat; Amir, Afif Asykar; Gunawan, Andit Zelly
Metta : Jurnal Ilmu Multidisiplin Vol. 5 No. 3 (2025)
Publisher : Jayapangus Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37329/metta.v5i3.4699

Abstract

Ocean Thermal Energy Conversion (OTEC) is an emerging marine renewable energy technology that exploits the natural temperature gradient between warm surface seawater and cold deep-sea water to generate electricity. This thermal energy potential is especially significant in tropical regions such as Indonesia, where oceanographic conditions are favorable. The West Sumatra Sea, bordering the Indian Ocean, is identified as a promising site for OTEC development due to its consistently high surface temperatures and considerable bathymetric depth. This study aims to assess the monthly vertical and horizontal temperature distributions, evaluate the seasonal variations, and calculate the theoretical efficiency of OTEC systems in the region. Ocean temperature data were sourced from the Copernicus Marine Environment Monitoring Service (CMEMS) and analyzed using Ocean Data View (ODV) software. Results indicate that surface water temperatures range between 29.3°C and 30.57°C, while deep-sea temperatures at 600 meters depth remain around 8.96°C. The average vertical temperature difference (∆T) throughout the year is approximately 21°C, satisfying the minimum threshold for OTEC viability. The thermocline layer is located between 40 and 77 meters, while deep water extends beyond 900 meters. The calculated average Carnot efficiency is 0.70, indicating a strong theoretical potential for energy conversion. Seasonal analysis also shows stable ∆T values during transitional monsoon periods, suggesting year-round operational feasibility. These findings confirm that the oceanographic characteristics of the West Sumatra Sea support the sustainable development of OTEC technology and highlight its strategic potential in contributing to Indonesia’s renewable energy transition.
Pengaruh Gaya Kepemimpinan Dan Budaya Organisasi Terhadap Produktivitas Dengan Kepuasan Kerja Sebagai Variabel Intervening Pada Karyawan Wisata Alam Gunung Dago Bogor Jawa Barat Parsaulian, Kevin Sahat
Innovative: Journal Of Social Science Research Vol. 4 No. 1 (2024): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v4i1.7800

Abstract

Sumber daya manusia adalah penting bagi setiap organisasi, baik pemerintah maupun swasta untuk menjalankan bisnis mereka sesuai dengan tujuan yang ditetapkan termasuk di pengelolaan wisata alam Gunung Dago. Penelitian ini bertujuan untuk menganalisis pengaruh gaya kepemimpinan dan budaya organisasi terhadap produktivitas melalui kepuasan kerja sebagai variabel intervening. Penelitian ini menggunakan metode deskriptif kuantitatif dengan menyebarkan kuesioner kepada responden. Populasi penelitian ini adalah karyawan yang aktif bekerja di wisata alam Gunung Dago di Bogor sebanyak 33 orang. Data dikumpulkan melalui kuesioner berbasis Google Form. Setelah data terkumpul, analisis dilakukan dengan menggunakan Structural Equation Modeling (SEM) atau SmartPLS. Hasil analisis data gaya kepemimpinan memiliki pengaruh positif dan signifikan terhadap kepuasan kerja. Budaya organisasi memiliki pengaruh positif dan signifikan terhadap kepuasan kerja. Gaya kepemimpinan berpengaruh namun tidak secara signifikan terhadap produktivitas, demikian pula dengan budaya organisasi. Sementara itu, kepuasan kerja memiliki pengaruh positif dan signifikan terhadap produktivitas. Gaya kepemimpinan memengaruhi produktivitas secara positif melalui kepuasan kerja sebagai variabel intervening. Begitu pula, budaya organisasi memberikan pengaruh positif terhadap produktivitas melalui kepuasan kerja sebagai variabel intervening.
Co-Authors Amir, Afif Asykar Gunawan, Andit Zelly